Poland and Czechoslovakia in 1968

In 1968 history of Czechoslovakia and Poland had intertwined. On one hand there was mutual feeling of solidarity on the part of Polish and Czechoslovak societies, on the other hand the Polish military forces participated in the invasion of Warsaw Pact forces, which had ceased the transformations of Prague Spring. Many new information derive from archival documentation which had been recently disclosed. The publication includes materials from Polish-Czech conference